Hydration and acetylation of limonene. Supported heteropolyacids

The limonene hydration and acetylation in liquid phase catalyzed by phosphotungstic and phosphomolybdic acid bulk and supported on silica and titanium dioxide were studied. The reaction was performed in a batch reactor in acetic acid at 40°C, with magnetic stirring of the reaction mixture. Reaction...

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Autores principales: Avila, Maria Cecilia, Comelli, Nora A., Firpo, Norberto Héctor, Ponzi, Esther Natalia, Ponzi, Marta I.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2008
Materias:
Ciencias Exactas
α-terpineol
Acetylation
Heteropolyacids
Hydration
Limonene
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/83087
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-83087
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
α-terpineol
Acetylation
Heteropolyacids
Hydration
Limonene
spellingShingle Ciencias Exactas
α-terpineol
Acetylation
Heteropolyacids
Hydration
Limonene
Avila, Maria Cecilia
Comelli, Nora A.
Firpo, Norberto Héctor
Ponzi, Esther Natalia
Ponzi, Marta I.
Hydration and acetylation of limonene. Supported heteropolyacids
topic_facet Ciencias Exactas
α-terpineol
Acetylation
Heteropolyacids
Hydration
Limonene
description The limonene hydration and acetylation in liquid phase catalyzed by phosphotungstic and phosphomolybdic acid bulk and supported on silica and titanium dioxide were studied. The reaction was performed in a batch reactor in acetic acid at 40°C, with magnetic stirring of the reaction mixture. Reaction products were analyzed by gaseous chromatography with FID detector using a capillary column for separation of products. The identification of compounds was made with pattern terpenes and by gaseous chromatography with mass spectrometry. All catalysts tested result to be active in the hydration and acetylation reaction of limonene. Catalysts based on phophotungstic acid (HPW) produce larger amount of hydration and acetylation products than phosphomolybdic acid (HPMo) catalyst. Hydration products increase faster than isomerization products when the reaction time is increased. The structure of heteropolyacids and the presence of acid sites Bronsted and Lewis were determined by FTIR.
format Articulo
Articulo
author Avila, Maria Cecilia
Comelli, Nora A.
Firpo, Norberto Héctor
Ponzi, Esther Natalia
Ponzi, Marta I.
author_facet Avila, Maria Cecilia
Comelli, Nora A.
Firpo, Norberto Héctor
Ponzi, Esther Natalia
Ponzi, Marta I.
author_sort Avila, Maria Cecilia
title Hydration and acetylation of limonene. Supported heteropolyacids
title_short Hydration and acetylation of limonene. Supported heteropolyacids
title_full Hydration and acetylation of limonene. Supported heteropolyacids
title_fullStr Hydration and acetylation of limonene. Supported heteropolyacids
title_full_unstemmed Hydration and acetylation of limonene. Supported heteropolyacids
title_sort hydration and acetylation of limonene. supported heteropolyacids
publishDate 2008
url http://sedici.unlp.edu.ar/handle/10915/83087
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AT firponorbertohector hydrationandacetylationoflimonenesupportedheteropolyacids
AT ponziesthernatalia hydrationandacetylationoflimonenesupportedheteropolyacids
AT ponzimartai hydrationandacetylationoflimonenesupportedheteropolyacids
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